Question

Sample data from a normal population are located in the Microsoft Excel Online file below. Use...

Sample data from a normal population are located in the Microsoft Excel Online file below. Use the data to answer the following questions for the σ unknown case.

8
12
14
18
19
16
17
3

  1. The point estimate of the population mean is (to 2 decimals)

  2. The standard deviation is (to 2 decimals)

  3. The margin of error is (to 1 decimal)

  4. The 95% confidence interval is (to 1 decimal)

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1
Values ( X )
8 28.8906
12 1.8906
14 0.3906
18 21.3906
19 31.6406
16 6.8906
17 13.1406
3 107.6406
Total 107 211.8748

Mean

Standard deviation

Point estimate =

Standard error =

Margin of error =

Confidence Interval



Lower Limit =
Lower Limit = 8.7755
Upper Limit =
Upper Limit = 17.9745
95% Confidence interval is ( 8.8 , 18.0 )


0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The data on a loan has been collected in the Microsoft Excel Online file below. Open...
The data on a loan has been collected in the Microsoft Excel Online file below. Open the spreadsheet and perform the required analysis to answer the questions below. Open spreadsheet a. Complete an amortization schedule for a $50,000 loan to be repaid in equal installments at the end of each of the next three years. The interest rate is 6% compounded annually. Round all answers to the nearest cent. Beginning Repayment Ending Year Balance Payment Interest of Principal Balance 1...
The following sample data are from a normal population: 13, 11, 15, 18, 16, 14, 9,...
The following sample data are from a normal population: 13, 11, 15, 18, 16, 14, 9, 8. (a) What is the point estimate of the population mean? (b) What is the point estimate of the population standard deviation? (Round your answer to three decimal places.) (c) With 95% confidence, what is the margin of error for the estimation of the population mean? (Round your answer to one decimal place.) (d) What is the 95% confidence interval for the population mean?...
The data on a loan has been collected in the Microsoft Excel Online file below. Open...
The data on a loan has been collected in the Microsoft Excel Online file below. Open the spreadsheet and perform the required analysis to answer the questions below. Amortization schedule Loan amount to be repaid (PV) $39,000.00 Interest rate (r) 11.00% Length of loan (in years) 3 a. Setting up amortization table Formula Calculation of loan payment #N/A a. Complete an amortization schedule for a $39,000 loan to be repaid in equal installments at the end of each of the...
Assuming that the population standard deviation is unknown, calculate the 95% confidence interval of the population...
Assuming that the population standard deviation is unknown, calculate the 95% confidence interval of the population mean. The following is the data. Calculating Process should be shown by Excel (Formulas). What formulas in statistics are used? 7 21 23 24 18 16 2 19 11 6 3 13 17 9 5 12 13 17 4 14 15 25 12 24 22 14 14 20 15 11 26 17 21 11 4 13 16 14 13 14 25 23 9 15...
Let the following sample of 8 observations be drawn from a normal population with unknown mean...
Let the following sample of 8 observations be drawn from a normal population with unknown mean and standard deviation: 16, 26, 20, 14, 23, 10, 12, 29. [You may find it useful to reference the t table.] a. Calculate the sample mean and the sample standard deviation. (Round intermediate calculations to at least 4 decimal places. Round "Sample mean" to 3 decimal places and "Sample standard deviation" to 2 decimal places.) b. Construct the 95% confidence interval for the population...
The sample data are from a normal population: 10, 8, 12, 15, 13, 11, 6, 5....
The sample data are from a normal population: 10, 8, 12, 15, 13, 11, 6, 5. What is the point estimate of the population mean? What is the point estimate of the population standard deviation? (Round to two decimal places) With 95% confidence, what is the margin of error for the estimation of the population mean? (Round to two decimal places) What is the 95% confidence interval for the population mean? (Round to two decimal places) ________and__________
Use the given information to find the minimum sample size required to estimate an unknown population...
Use the given information to find the minimum sample size required to estimate an unknown population mean μ. 13) Margin of error: $127, confidence level: 95%, σ = $58
2. From a normal population, a sample of 245 observations is selected. The population standard deviation...
2. From a normal population, a sample of 245 observations is selected. The population standard deviation is 28, and the sample mean is 17. a. Determine the standard error of the mean. (Round your answer to 3 decimal places.) STANDART ERROR OF THE MEAN: …..? b. Determine the 95% confidence interval for the population mean. (In your calculations: round your z/t value to 2 decimals, but round all other values to 3 decimals. Round your final answer to 3 decimal...
From a normal population, Dr. Çetin takes a sample of 235. The population standard deviation is...
From a normal population, Dr. Çetin takes a sample of 235. The population standard deviation is 24, and the sample mean is 17. a.Determine the standard error of the mean. (Round your answer to 3 decimal places.) Standard error of the mean: ……? b. Determine the 95% confidence interval for the population mean. (In your calculations: round your z/t value to 2 decimals, but round all other values to 3 decimals. Round your final answer to 3 decimal places.) Confidence...
The following sample data are from a normal population: 8, 6, 10, 13, 11, 9, 4,...
The following sample data are from a normal population: 8, 6, 10, 13, 11, 9, 4, 3. (a) What is the point estimate of the population mean? (b) What is the point estimate of the population standard deviation? (Round your answer to three decimal places.) (c) With 95% confidence, what is the margin of error for the estimation of the population mean? (Round your answer to one decimal place.) (d) What is the 95% confidence interval for the population mean?...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT